Welcome to the final day of Google Sightseeing Reader Takeover Week. Every day this week, one of you has been chosen to have their very own sight posted here on GSS, while Alex and James take a well deserved holiday. Today’s final sight is from GSS addict Rob! Nicknamed “Billionaires Row”, Kensington Palace Gardens, in West London, is home to a collection of the most expensive homes in the World. For those of you who have just come off the hedge fund management circuit, prices start at around £50 million for the smaller house, although the asking price…